Important new in this release of updates is that for the first time, the cu will be available through Microsoft Update.
Fixes that are part of this update
FIX: User cannot perform certain database-related operations in BizTalk Server 2013
FIX: BAM tools cannot be configured in a...

“This article lists the version information of the service packs and the cumulative updates for Microsoft BizTalk Server and for Microsoft BizTalk Adapter Pack. We recommend that you to install the latest cumulative update for the version of BizTalk Server that you are using.” http://support.microsoft...